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Finding the Fourth Proportional to 208,646.08, 287,928.18 and 117,998.64

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Solution

The fourth proportional to 208,646.08, 287,928.18 and 117,998.64 is: 162,836.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,646.08 : 287,928.18 = 117,998.64 : x
  2. Step 2: Convert to fraction form
    208,646.08/287,928.18 = 117,998.64/x
  3. Step 3: Cross multiply
    208,646.08x = 287,928.18 × 117,998.64
  4. Step 4: Simplify right side
    208,646.08x = 33,975,133,657.68
  5. Step 5: Solve for x
    x = 33,975,133,657.68/208,646.08
  6. Step 6: Final answer
    x = 162,836.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.